An observatory with a 54-meter-wide radio telescope sits in the mountains of Armenia.

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

Centuries before the modern seismograph, Armenian monks measured quakes with this tilting pillar.

The world's longest nonstop reversible cable car soars through spectacular scenery to the medieval Tatev Monastery.

After visiting hours, this picturesque waterfall is essentially turned "off" to be used for hydroelectric power.

Men and special assistants stand by the road to sell the day's catch in this lakeside village.

This ancient monastery complex was transformed from an island to a peninsula when the lake was partially drained.

Hundreds of intricately carved Armenian stone crosses can be found within this huge cemetery.

A natural bridge formed by limestone travertines in Armenia's Vorotan River Canyon.

Foreign invaders almost left this lovely Caucasus palace alone—almost.

The village's cobblestone streets are lined with shops displaying exquisite copper craftsmanship.

Mysterious hillside with a continuously burning natural fire.

A unique museum dedicated to culture and artistry of carpet weaving.

This mysterious but iconic tapered tower appears in many Azeri fairytales and legends.

The building's fluid, wavelike walls are a true feat of architectural ingenuity.

Two distorted Romanesque columns hold aloft a mine cart in honor of laborers who died during WWII.

A monument to the bloody fight against fascism in Slovakia during World War II.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

The chefs at El Diablo use heat generated by an active volcano to cook the food.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

A small town hallucinates en masse - Bad bread, or CIA science project?

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

The last Oostende trawler to fish off Iceland is now a museum.

A man throwing a giant severed hand towers over Antwerp’s main square.